/* Design System Variables */
:root {
    --bg-color: #f0eee5; /* Textured paper look background */
    --paper-color: #fffdf7; /* Creamy paper */
    --ink-color: #2c2c2c; /* Soft black ink */
    --accent-color: #4a4a4a;
    --font-handwriting: 'Caveat', cursive;
    --shadow-soft: 0 15px 35px rgba(0,0,0,0.1);
    --line-color: #a2d2ff; /* Subtle ruled line color if needed, not used yet */
}

body {
    background-color: var(--bg-color);
    font-family: var(--font-handwriting);
    color: var(--ink-color);
    margin: 0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
}

/* Paper Card Aesthetic */
.paper-container {
    background-color: var(--paper-color);
    width: 90%;
    max-width: 600px;
    padding: 3rem;
    box-shadow: var(--shadow-soft);
    border-radius: 4px;
    position: relative;
    /* Subtle rotation to make it look placed on a desk */
    transform: rotate(-1deg);
    transition: transform 0.3s ease;
}

.paper-container:hover {
    transform: rotate(0deg) scale(1.01);
}

/* Typography */
h1 {
    font-size: 4rem;
    margin-top: 0;
    margin-bottom: 2rem;
    font-weight: 700;
    text-align: center;
    line-height: 1.1;
}

p {
    font-size: 1.8rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.signature {
    margin-top: 3rem;
    text-align: right;
    font-size: 2rem;
    color: var(--accent-color);
}

/* Mobile Responsiveness */
@media (max-width: 600px) {
    h1 {
        font-size: 3rem;
    }
    p {
        font-size: 1.5rem;
    }
    .paper-container {
        padding: 2rem;
        width: 85%;
    }
}